ADC3441 datasheet(39/88 Pages) TI2

39 / 88 page

Frequency (MHz)

100

150

200

250

300

350

400

100

D118

Dither_EN

Dither_DIS

Frequency (MHz)

100

150

200

250

300

350

400

D117

Dither_EN

Dither_DIS

Each Tone Amplitude (dBFS)

-35

-31

-27

-23

-19

-15

-11

-7

-110

-105

-100

-95

-90

-85

D115

Each Tone Amplitude (dBFS)

-35

-31

-27

-23

-19

-15

-11

-7

-110

-105

-100

-95

-90

-85

-80

D116

Frequency (MHz)

12.5

37.5

62.5

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

D113

Frequency (MHz)

12.5

37.5

62.5

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

D114

ADC3441, ADC3442, ADC3443, ADC3444

www.ti.com

SBAS670B – JULY 2014 – REVISED APRIL 2017

Product Folder Links: ADC3441 ADC3442 ADC3443 ADC3444

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Typical Characteristics: ADC3444 (continued)

typical values are at TA = 25°C, ADC sampling rate = 125 MSPS, 50% clock duty cycle, AVDD = 1.8 V, DVDD = 1.8 V, –1-

dBFS differential input, 2-VPP full-scale, 32k-point FFT, chopper disabled, SNR reported with a 1-MHz offset from dc when

chopper is disabled and from fS / 2 when chopper is enabled, and dither on (unless otherwise noted)

fIN1 = 185 MHz, fIN2 = 190 MHz, IMD3 = 88 dBFS,

each tone at –7 dBFS

Figure 112. FFT for Two-Tone Input Signal

(–7 dBFS at 185 MHz and 190 MHz)

fIN1 = 185 MHz, fIN2 = 190 MHz, IMD3 = 104 dBFS,

each tone at –36 dBFS

Figure 113. FFT for Two-Tone Input Signal

(–36 dBFS at 185 MHz and 190 MHz)

Figure 114. Intermodulation Distortion vs Input Amplitude

(46 MHz and 50 MHz)

Figure 115. Intermodulation Distortion vs Input Amplitude

(185 MHz and 190 MHz)

Figure 116. Signal-to-Noise Ratio vs Input Frequency

Figure 117. Spurious-Free Dynamic Range vs

Input Frequency

ADC3441 데이터시트(PDF) 39 Page - Texas Instruments

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